Handle for percussive tools



i :enne if ineens; sonnes jiwlleeizmu. April renders the drilling;A less :letiginng for. the

operator.

ln/ether object cit' inventisn is to se cure simple but streng and dnrslbie lrsn die loer sonstrnctinn wlsicli will withstand siiocli and Without breaking.

To these snd @tirer ends which will heref er appesi. the invention eonsists of 'I 'itures of construction :rnd conoinw tiene nl elements described and claimed in this specieation and slioivn in the siccom- Iure l is a elevation il, rtlj; in ver 'tical section el. s percus-lewe tool having my improved handle strained thereto,

Fig; f side elevation oi anetl side of lle o looking et tire end oi' tile handle,

wie g e A view or one of 'the beck heen langesend a lcolt end,

.ng drawings in which,

Q to Fig. is n detail side elevation partly in vert'tel section of e modified handle con;

L is a detail horizontal sectional View on the line iSv-5 of Figi'. il., looking' 1p the d'1- restmn of the arrows. w

Referring' to tlie drawings, lugs. l :and 2 represent so munita of 1 1; permissive iool es will serve to illustrate the invention. The tool is provided with the nsnel main cyllinder casing A within which e on (not shown) forming s. hammer is adapted to reciinoczite, actuated by fluid under pres` sure. The drill steel B is carried lijf; ti.;

front head il, and the cyliniiler casing A, cylinder extension fr', ifrnnt liend C, sind l'rcli heed are lield 'togetl by the usual side bolts E.

p lmcli liefid l) in this instance is provide-:l with the or lngs ll` and rearwrirdlv .-ending handle supporting belts is an enlarged detsiljperspective,

w; .1. v A.: .y Nes. l, ieee. amazes.

tend to force the handle liar sway i'rcnthe lieclr heed. The sleeves serre the purpose si' gu ngtlie handle bar and springs as the handle bei' slides on tlie bolts G.

ln assembling the parts, the bolts and springs are placed in position (inthe handle liar, sind the ends of the bolts are inserted in tlie 'flanges i? sind then tiglitened'in position by ineens of 'the nuts 5i. ln accordance with this construction tlie bolts ere rigidly lield on the back liezid D While 'tlle handle bei' may slide on the bolts sleeves Q. y The bosses il' on 'the flanges ll' also serre to center und guide the ends of the springs .adjacent theV back heed l?. Thebolt heed receiving sockets O are 0i sullicient depth that when the springs are com? pressed, a portion of the bolt heads still re- Insins in the sockets and thus avoids tliepns sibilitty of catching' and injuring the opere tors hands.

guided by the ln the modification of the invention' shown in Figs. e'- and 5, the back hezuil)1 The bolts Gr are provided with the square necks l. heldv from turning 'within the bosses'l on the handle ber L and the bolt heads are prntected in. 'the bolt head receiving sockets ln accordance with this modified construction shown in Figs. e end 5 the bolts are tightened by means of the 'nuts S and are rigidly connected to the handle leer instead of te the back heed.

In either form of the invention, the conu struction is durable and the bolts and guiding sleeves are not liable to 'breek Under shock and herd usage.

E @klink-vs l. ln a permissive tool u beck heed haviss gli?

vthe spijings toi' guiding the handle liar and springs, and means for pi'eventingthe bolts from turning.

2. lil apeicussive tool,l a hack head having bolt securing flanges, bolts passing thioiiffh said tlani'es and extendinwieaih emily, a handle hailslidaloly mounted on' said bolts, compression springs around said holts between the handle bar and back head, tending to' force the handle bai' awa-y from the loaeli1 head, sleeves connected to the hanolle-"hai: and lying within the springs loi guiding the handle bai and springs, and means for preventing the bolts from tuin ingu 3. In apeirciissive tool, a hack head having bolt securing flanges, rearwardly extending bolts passing through said flanges and rigidly secured tlieieto against endwise oi` i'otai'y movement, a handle bar slidaloly mounted on said bolts, compression springs around said bolts between the handle bar intense ing to toi-ee the handle bai1 away from the haelffhead, and protective sockets within which the holt heads aie adapted to slide. ln a permissive tool., a hack head hav ing Aholt seein-ing flanges, bolts passing though said anges and extending rearwardly, a handle 'liar mounted on said bolts, compression springs around said bolts l etween the handle bai' and haelt head, tending to force the handle baiaway from the hack head, pioteetive sockets within which the bolt heads are adapted to slide, and means for pieventing theloolt heads from moving beyond the sockets;

In testimony whereof, have hereunto set my hand.

eussent ii. wiiiieiiiiiiiin 

